Part #: 221-3511

Denso 221-3511 Radiator

⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 6
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Overview of Denso Radiator for Mazda 6

The Denso radiator part number 221-3511 is engineered specifically for the Mazda 6, providing reliable cooling performance. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports efficient engine temperature regulation.

  • Core Height: 14.875 inches
  • Core Width: 29.000 inches
  • Core Thickness: 1.000 inch
  • Inlet Diameter: 1.25 inches
  • Outlet Diameter: 1.25 inches
  • Includes Transmission Oil Cooler

Detailed Product Description

This Denso radiator (part number 221-3511) features a core height of 14.875 inches and a width of 29 inches, with a thickness of 1 inch, ensuring optimal heat dissipation for the Mazda 6. The radiator includes both inlet and outlet diameters of 1.25 inches, matching factory specifications for seamless installation. Additionally, the integrated transmission oil cooler enhances the cooling system by maintaining transmission fluid temperature, which is critical for vehicle performance and longevity.

Compatible Vehicles and Applications

This radiator is compatible with Mazda 6 models requiring a direct replacement radiator with transmission oil cooler integration. It is designed to address common cooling system issues such as overheating, coolant leaks, and transmission fluid overheating.

  • Overheating engine due to radiator inefficiency
  • Coolant leaks from damaged or corroded radiator cores
  • Transmission fluid overheating affecting transmission performance
  • Reduced cooling capacity from clogged or worn radiators

Installation Notes and Tips

When installing the Denso 221-3511 radiator on a Mazda 6, ensure all hose connections match the 1.25-inch inlet and outlet diameters. Properly flush the cooling system before installation to prevent contamination. Verify the transmission oil cooler lines are securely connected to avoid leaks. Follow manufacturer torque specifications for mounting bolts to prevent damage.

Quality Assurance and Warranty

Denso radiators are manufactured to meet or exceed OEM standards, ensuring durability and performance. The 221-3511 radiator undergoes rigorous quality control testing. Warranty coverage details should be confirmed with the distributor or manufacturer, typically including protection against defects in materials and workmanship.

BrandDenso
Part Number221-3511
Core Height14.8750
Core Thickness1.0000
Core Width29.0000
Inlet Diameter1.2500
Outlet Diameter1.2500
Transmission Oil Cooler IncludedYES

This part fits 3 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2005Mazda6AutomaticN/A
2004Mazda6AutomaticN/A
2003Mazda6AutomaticN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

8012673

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.